Concept

Heat equation

Related publications (447)

Acoustic Phonon Lifetimes and Thermal Transport in Free-Standing and Strained Graphene

We use first-principles methods based on density functional perturbation theory to characterize the lifetimes of the acoustic phonon modes and their consequences on the thermal transport properties of graphene. We show that using a standard perturbative ap ...

2012

Reduced Models for Cardiovascular Applications

Alessandro Samuele Patelli

The goals of this project are to study and numerically solve a reduced fluid-structure interaction problem for cardiovascular applications. The first section of this project presents two test cases in order to understand the finite element method for two d ...

2012

A Probabilistic Approach of Sum Rules for Heat Polynomials

Olivier Lévêque

In this paper, we show that the sum rules for generalized Hermite polynomials derived by Daboul and Mizrahi (2005 J. Phys. A: Math. Gen. 38 427-48) and by Graczyk and Nowak (2004 C. R. Acad. Sci., Ser. 1 338 849) can be interpreted and easily recovered usi ...

2012

Persistent Spin Dynamics Intrinsic to Amplitude-Modulated Long-Range Magnetic Order

Helmuth Berger

An incommensurate elliptical helical magnetic structure in the frustrated coupled-spin-chain system FeTe2O5Br is surprisingly found to persist down to 53(3) mK (T/T-N similar to 1/200), according to neutron scattering and muon spin relaxation. In this stat ...

Amer Physical Soc2012

On Source Coding for Distributed Temperature Sensing with Shift-Invariant Geometries

Robert Konsbruck

We study the source coding problem in sensor networks deployed to monitor the evolution of spatio-temporal temperature distributions. The sensors sample the temperature field, quantize the samples and transmit the encoded samples through digital channels t ...

Institute of Electrical and Electronics Engineers2011

Calculating the second harmonic near field radiation pattern from a LiNbO3 nanowire using a nonlinear Volume Integral Equation Method

Demetri Psaltis

We propose a novel nonlinear Volume Integral Equation formulation for second harmonic scattering problems, which we use for the calculation of the second harmonic near field generated from LiNbO3 nanowires. (C) 2010 Optical Society of America ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Test results of the 18 kA EDIPO HTS current leads

Pierluigi Bruzzone, Markus Jenni, Manuel Holenstein, Rainer Wesche, Martin Vogel, Stephen Alfred March, Félix Roth, Roland Felder

For the new test facility EDIPO (European DIPOle), to be hosted by CRPP, two 18 kA HIS current leads were manufactured and successfully tested. The HTS module, made of AgMgAu/Bi-2223 tapes, is cooled only by heat conduction to the cold end, while the coppe ...

2011

Thermo-hydraulic analysis of the cool-down of the EDIPO test facility

The first cool-down of the EDIPO (European DIPOle) test facility is foreseen to take place in 2011 by means of the existing 1.2 kW cryoplant at EPFL-CRPP Villigen. In this work, the thermo-hydraulic analysis of the EDIPO cool-down is performed in order bot ...

Elsevier2011

Heat-driven spin currents on large scales

Jean-Philippe Ansermet, Sylvain Bréchet

Using a three-current model (i.e. heat, spin-up and spin-down electrons) the thermodynamics of irreversible processes predicts that a temperature gradient gives rise to a spin current on large scales, in particular under the conditions used to measure the ...

Wiley-Blackwell2011

Analytical Heat Transfer Model for Thermal Through-Silicon Vias

Giovanni De Micheli, Vasileios Pavlidis, Hu Xu

Thermal issues are one of the primary challenges in 3-D integrated circuits. Thermal through-silicon vias (TTSVs) are considered an effective means to reduce the temperature of 3-D ICs. The effect of the physical and technological parameters of TTSVs on th ...

2011

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